A lawyer for the University of Virginia fraternity whose members were accused of a brutal gang rape said Friday that the organization will release a statement rebutting the claims printed in a Rolling Stone article about the incident. Several of the woman’s close friends and campus sex assault advocates said that they also doubt the published account.

Officials close to the fraternity said that the statement will indicate that Phi Kappa Psi did not host a party on Sept. 28, 2012, the night that a university student named Jackie alleges she was invited to a date party, lured into an upstairs room and was then ambushed and gang-raped by seven men who were rushing the fraternity…

Will Dana, Rolling Stone’s managing editor, also released a statement with new doubt. “In the face of new information, there now appear to be discrepancies in Jackie’s account, and we have come to the conclusion that our trust in her was misplaced,” he said in a statement.

A group of Jackie’s close friends, who are sex assault advocates at U-Va., said they believe something traumatic happened to Jackie but have come to doubt her account. They said details have changed over time, and they have not been able to verify key points of the story in recent days. A name of an alleged attacker that Jackie provided to them for the first time this week, for example, turned out to be similar to the name of a student who belongs to a different fraternity, and no one by that name has been a member of Phi Kappa Psi.